diff options
| author | Servaas Vandenberghe <vdb128@picaros.org> | 2011-02-13 23:51:09 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 02:32:22 +0300 |
| commit | 6188a0f151204d6f895822e8c0059b8951879a42 (patch) | |
| tree | ff8c4847220a215f0415868eb0be82837eb8c636 /drivers/media/video/pvrusb2/pvrusb2-hdw.c | |
| parent | 35fa5d4c48fbb02d637c3659f00331aa33f0f029 (diff) | |
| download | linux-6188a0f151204d6f895822e8c0059b8951879a42.tar.xz | |
[media] pvrusb2: width and height maximum values
pvrusb2: The origin of the capability bounds rectangle may differ from
(left=0,top=0) so the calculation should use absolute coordinates,
here below, or use relative coordinates like
cropl_val-cap->bounds.left and cropt_val-cap->bounds.top.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 5e6437dd91df..48859370c57b 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -499,31 +499,35 @@ static int ctrl_cropt_max_get(struct pvr2_ctrl *cptr, int *top) return 0; } -static int ctrl_cropw_max_get(struct pvr2_ctrl *cptr, int *val) +static int ctrl_cropw_max_get(struct pvr2_ctrl *cptr, int *width) { struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info; - int stat = pvr2_hdw_check_cropcap(cptr->hdw); + int stat, bleftend, cleft; + + stat = pvr2_hdw_check_cropcap(cptr->hdw); if (stat != 0) { return stat; } - *val = 0; - if (cap->bounds.width > cptr->hdw->cropl_val) { - *val = cap->bounds.width - cptr->hdw->cropl_val; - } + bleftend = cap->bounds.left+cap->bounds.width; + cleft = cptr->hdw->cropl_val; + + *width = cleft < bleftend ? bleftend-cleft : 0; return 0; } -static int ctrl_croph_max_get(struct pvr2_ctrl *cptr, int *val) +static int ctrl_croph_max_get(struct pvr2_ctrl *cptr, int *height) { struct v4l2_cropcap *cap = &cptr->hdw->cropcap_info; - int stat = pvr2_hdw_check_cropcap(cptr->hdw); + int stat, btopend, ctop; + + stat = pvr2_hdw_check_cropcap(cptr->hdw); if (stat != 0) { return stat; } - *val = 0; - if (cap->bounds.height > cptr->hdw->cropt_val) { - *val = cap->bounds.height - cptr->hdw->cropt_val; - } + btopend = cap->bounds.top+cap->bounds.height; + ctop = cptr->hdw->cropt_val; + + *height = ctop < btopend ? btopend-ctop : 0; return 0; } |